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          Ben     his homework at school.  
          A.don’t  do          B.doesn’t  do     C. doesn’t    D don’t
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B
          考查do的用法。句意：本不在學(xué)校做作業(yè)。do可用作助動詞和實意動詞。Ben是第三人稱單數(shù)，謂語動詞要用第三人稱單數(shù)，否定句要用doesn’t。后跟動詞原形do。故選B。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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